Hydration apparatus



J. C. SCHAFFER.

HYDRATION APPARATUS.

APPLICATION FILED MAR 26, 1917.

Patented June 20, 1922.

3 SHEETS-SHEET I.

N I) "I l [I I 4 ?i I? I l al tozmm J. C. SCHAFFER.

HYDRATION APPARATUS.

APPLICATION FILED MAR 26,1917

Patented June 20 1922.

3 SHEETS-SHEET 2.

.I. C. SCHAFFER.

HYDRATiON APPARATUS.

APPLICATION FILED MAR. 26. 1917.

XAQQ 1 5 8., I Patented June 20, 1922.

3 SHEETSSHEET 3.

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U l t ll a l Jenn c. senarrna, or rrrrnr, onto, nssreuon no scnanrnnnneinnname a nourrninrir co, or rrrrsennen, rnnnsrnvnnm, a com oaarronor renn- SYLVANl'i-l.

To all whom it may concern:

Be it known that l, JOHN C. Sonarrnn,

a citizen of the United States of America,

broken away disclosing an apparatus for use in carrying out theinvention;

nig. 2 is a fragmentary side elevation of the feeding device;

Fig. 3 is a section on the line Ill-Hi big. 2; p i

lBig. i is a fragmentary view of the discharge device;

Fig. 5 is a plan view of the spray devices of the top section orchamber;-

lFig. 6 is a vertical section through the upper bearing of the hydratorshowing the circulating system;

Fig. 7 is a fragmehtary perspective view of a corner clearing plow for amovable platform;

Fig. 8 isa fragmentary perspective view, of a corner clearing plow, forastationary platform;

. Fig. 9 is a detail view of one of the ad justable clearance materialagitating and progressing plows; an

Fig. 10 is a perspective view of a cone clearing plow. V

The hydrator embodies the main housing 1 shown as cylindrical, whichcarries thereover the feedinc device including the hopper 2 deliveringto the endless conveyer /or belt'3 to efi'ect delivery thereby of aweighed uniform mass of material continuously to the hydrator. llhisuniform weight of material may be adjusted according to the determinedrate desired by manipulation of the scale beam d.

Driven simultaneously with this continuous feed .device for the supplyof uniform weight of the material fragments is the moisture supplydevice being actuated there- HYDRATIUN APPARATUS.

Specification of Letters Patent. Patented June 241), 5922,

tlontinuation in part of application Serial No. 83,2 l-1, filed march19, 1916. This Serial Ito. 1573M.

application filed March from by the connecting rod 5 the throw of whichmay be adjusted as desired by the positioning of the wrist pin 6. Thisvaried reciprocation eifective for the piston rod 7 determines the feedvolume of water supplied from the liquid measuring cylinder 8 to thespray pipe 9 extending centrally of the top of the hydrator housing 1that the branch 10 may deliver to thd chamber 11 for passage therefromthrough the rectangular spray 12 and radial sprays 13, 14:, embodyingpipes with series of perforations therein. This chamber 11 is a watercirculation cooling chamber for the bearing 15 engaging the upper end ofthe rotatable central shaft 16 of the hydrator.

The branch pipe 17 may supply water directly to the friction facesbetween the bear ing 15 and the shaft 16 for film lubrication, thiswaterpassing therefrom over the cone 18 to assist in moistening the limeor other material being treated I This material supplied from the belt 3of the feed device enters the scroll conveyer 19 driven by the shaft 20from a source for operation simultaneously with-the driving of the watermeasure and the material weighing belt. 'lhis scroll conveyer 19 has thearch 20 for its upper section, while the lower section conforms to thecurvature of the variahle'pitch scroll. Accordingly, when the materialfragments are supplied thereto, suchmaterial in this conveyer operatesas a seal in precluding escape of gases from the hydrator housing- 1.The discharge from this conveyer 19 into the housing 1 is by the chute21 centrally of the rectangular spray 12 so that the falling fragmentsare immediately thoroughly mixed with water before they reach the toprevolving platform 22 carried by the shaft 16; Should this water su plyfrom the spray 12 be insufiicient for t e desired hydration, theadditional spray arms 13 and i i may be supplied: in Fig. 5 thereisagainst movement. Pivotally connected to the stems are the arms 27fast with which may be the plow plate 28, the clearance of which may beadjusted as to the platform by the plow arm engaging clamp for chain 29extending to the hook 30 on the stem 25. These plows may have theirangular position varied as desired to determine the progress of thematerial durmg hydration and agitation stages for covering the entireplatform region.

The hydrated material is more fluffy and accordingly in the agitationincidental to the relative movement of the plows and platform works tothe surface of this ma terial. The retarding flange 31 on the platform22 serves to detain the coarser un hydratedor unslaked portions, whileallowing the more thoroughly slalred to work over this flange 31 andfall upon the stationary platform 32. The platform 22 carries on itsunder side theradiating arms 33 having Q plows 28 to progress thismaterial from the outer edge of the platform 22 in the oppositedirection, or inward, to spill cen trally therefrom upon the cone etandrotating platform 35. These stages of altonating travel are continuedthroughout the downward course of tie material in this housing 1untilfinal delivery from the lower platform 36 by the chute 37 to thescroll conveyor 38 for delivery of the slalred or finished driedmaterial.

The scroll conveyer 38 is driven from the sprocket wheel 39 by thesprocket chain 40 from sprocket wheel ll on the shaft d2,

3 which shaft -l2 carries the main drive alt) sprocket 4:3.

Un this shaft 4-2 is the bevel pinion t l in mesh with the bevel gear onthe shaft 16 driving the various movable platformsand the plows of theseplatforms sustaining arms.

Provision is made that the machine or hydrator may be self-cleaningthroughout thereby avoiding any calling of stock and its consequentinterference with the uniform operation of the apparatus in the producisgreatly improved b tion of a standard product of superior quality. Tnthis connection the outer or retardin flange 31 of the moving platformhas its angle cleared of stock by the plows 46 mounted upon the brackets4:7 carried by the housing 1. The corner clearance for the stationaryplatforms is effected by the plows 48 carried by brackets lt) connectedto a pin 25 carried by a movable platform arm, The cones are cleared bythe plows 50 mounted on the carrying brackets 51 fast with thestationary platform arm support. i i

. The superiority of the product, especially in certain calcium andmagnesium hydrates the elimination of 1116113" gases, as air, an themaintenance of a ras v serve for clean-out when too strong draft hasdrawn lime dust into the stack:

lVith the steam as a blanket trapped in the upper chamber or chamberswhere the mingling or mining occurs'in the first stages and theagitation for thorough hydration in the succeeding intermediate stages,there-is that permeation of the steam throughoutthe entire mass ofmaterial insuring a thoroughness of hydration.

The efitectiveness of the initial spray for moisture supply worksagainst the accumulation of the material in balls, while the plows intheir action further tend to break up any such gatherings. With theretarding flanges operating to assist in holding back theless-thoroughly hydrated or unslaked stock, k the later stages of the hydrator have on their platforms a stock most thoroughly slaked and thedry steam or hot gases from theinitial stages co-operate in assistingthe drying during the agitation.

With the draft from the hydrator pass ing over these platforms with theagitated stock excess moisture is removed for at the terminal stages,spill centrally of the platform 36is precluded bythe central flange 57,the opening through which may allow an indraft of air from the man-hole58, which air may pass-up the shafts 5i from the lower chambers of thehydrator. With the heat escape from the upper chambers controlled, thehydrated lir'nfe is so hot that upon reaching the lower heat dissipatingor cooling and drying chambers, the excess moisture is readily given upto the incoming air establishing an effective cooling and drying draftthrough the stack. 4

For common subject matter, this case is a marries against vapor escapeupward from said upper section for holding said atmosphere as a limegenerated steam envelope for the lime.

2. A multichamber lime hydration apparatus embodying a continuous feeddevice for lime, a water supply directed upon the lime, and means fordriving water of said supply into the lime during sinking including achamber closed as against vapor escape upward therefrom for holding thesteam generated by the heat of slaking as an envelope for resistingliberation of the moisture by the lime.

3. A multichamber lime hydration apparatus including a closed chamber amoisture supply for directing Water upon the lime in said chamber, andmeans for progressing the lime through the apparatus, said chamber beingclosed as against vapor escape upward therefrom for holding the steamgenerated by the heat of slalring as an atmosphere enveloping the limeduring the progress of the lime.

' 4-. A multichamber lime hydration apparatus embodying a closedchamber, and definite lime and water proportioning means includingrelatively adjustable interconnected feeding devices therefor, saidchamber provided with means for controlling the envelopinghydration-generated steam atmosphere as a held heat blanket over thelime mixed with water.

5. A lime hydrator embodying a moisture mixing chamber having its upperportion closed to hold generated vapors therein, an agitation chamber towhich the mixing chamber delivers including a dam for the unslaked limewhich permits the slalred lime to find therover, and a drying chamberfor the slalred limed.

6. A hydrator embodying a continuous feed device having a discharge, aspray surrounding said discharge, material agitating means for thesprayed material, and a driver for the means.

A 7. A hydrator embodying a continuous feed device having a discharge, aspray enveloping the discharge, supplemental spray means, materialagitating means for the sprayed material, and a driver for the means. 8.A hydrator embodying a housing, a shaft in the housing, a chamberedbearingfor the shaft, and means for supplying a hydrating liquid in thehousing including means providing a passage communicating with theinterior of the housing and with the chambered bearing.

9. A hydrator embodying a housing, a shaft in the housing, a chamberedbearing for the shaft, and means for supplying a liquid to the hydratorincluding means providing a passage communicating with the interior ofthe housing for flow from the chambered bearing.

10. A hydrator embodying a housing, a

shaft in the housing, a bearing for the shaft,

and pressure liquid supply means for estab lishing a water film in saidbearing, there being a way pernntting flow from SillfilflViiter filminto the housing as a water supply for the promotion of hydration.

11. A hydrator embodying a chamber provided with means for maintaining avapor blanket therein, a continuous feed device embodying movable meansfor supplying material to the chamber, and a housingabout the device,means coacting with said means to hold the material as to the device informing a packed material seal from the device continuous uniformclearance from the. platform in its drag.

13. A hydrator embodying a platform having a cone, arigidly mountedmaterial clearing plow positively held in fixed position as to saidcone, and means for effecting relative movement between the cone andplow.

1a. A hydration apparatus embodying a cylindrical housing providing incoaxial alignment a moistening and heat generating chamber closed tohold a vapor blanket therein, an agitation chamber, and a drying andcooling chamber, said chambers being in aseries for continuous treatmentand each having a floor and power driving means for progressing thematerial to be hydrated to overflow from the respective floors.

15. A hydration apparatus embodying a housing including heat generatingand heat dissipating sections, said heat generating sections beingclosed to hold a vapor blanket therein, said heat generating sectionincluding amoistening chamber and an agitation chamber, said heatdissipatingsection including a cooling and drying chamber, said chambersbeing coaxial and each having a floor, and power driving means forprogressing the material to be hydrated to overflow from the respectivefloors.

in witness whereof I afiix my signature.

J OHN C. SCHAFFER.

